原文传递
NUMERICAL SIMULATION ANALYSIS ON THE FIRE-RESISTANCE PERFORMANCE OF DOUBLE-LAYERED LINING STRUCTURE OF COMBINED RAILWAY AND ROADWAY RIVER-CROSS SHIELD TUNNEL
| 题名： | NUMERICAL SIMULATION ANALYSIS ON THE FIRE-RESISTANCE PERFORMANCE OF DOUBLE-LAYERED LINING STRUCTURE OF COMBINED RAILWAY AND ROADWAY RIVER-CROSS SHIELD TUNNEL |
| 正文语种： | 中文 |
| 作者： | QIU Yue FENG Kun HE Chuan XIAO Mingqing TANG Yin Sun Wenhao HE Yingdao |
| 作者单位： | Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of ivil Engineering,Southwest Jiaotong University, hengdu 610031, hina hina Railway Siyuan Survey and esign Group o., Ltd., Wuhan 430063, hina |
| 关键词： | combined railway and roadway shield tunnel double-layered lining structure fire resistance performance segment unbind second lining |
| 摘要： | Basedon Sanyang Road combined railway and roadway river-cross shield tunnel in Wuhan, this paper has made a survey on negative influences on segment and unbind second lining in different conditions, including fire at the roadway region, fire at the railway region, and fire at both of the roadway and railway region.Temperature field distribution of lining and variety law of stress at high temperature are explored numerically through RABT heating curve of fire source.The results show that it doesn't make an interaction impact when two types of fires occur individually.Temperature of segment spandrel can reach about 650℃ due to be exposed to the fire directly.The other parts of segment are at a lower temperature due to the protection of unbind second lining.During the period of the fire, principal compressive stress of the segment makes any major changes with slight fluctuation, and maximum value distributes on the outside of segments.The principal compressive stress of unbind second lining increases first and then decreases. |
| 会议日期： | 20150909 |
| 会议举办地点： | 南京 |
| 会议名称： | 第八届中日盾构隧道技术交流会 |
| 出版日期： | 2015-09-09 |
| 母体文献： | 第八届中日盾构隧道技术交流会论文集 |
相关文献
检索历史
应用推荐
